Non-analog speaker system by multistage full-band single diaphragm that allows one electromagnetic pulse wave to serve as both voice signal and bias and enables whole-surface braking force drive and radio space floating operation
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Disposable power source part for iontophoresis drive changing into battery by body temperature
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Electric vacuum cleaner performing both exhaust and suction operations at the same spot
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System for improving absorption efficiency in percutaneous administration of medicine
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Magnetic damper for space floating diaphragm in 'laminated robin type push-pull drive dynamic speaker system'
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Snow tire with optional variable anti-skid
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Laminated ribbon type push-pull drive dynamic speaker system
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Spike tire with automatic variable pin
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Low pitched sound strengthening device for cone type dynamic speaker
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Magnetic head
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Respiration converting system full drive nonndirectional dynamic speaker system
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Spiral moving coil pickup
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Double motion converting pushhpull condenser speaker system
